Laggera\ lxxi. composit^b. 557 



smaller capitula and narrower leaves than in the common one. No. 3900- 

 A strict herb, 2^ to 4 ft. high ; leaves in the living state glaucescent- 

 green, rather rigid and spreading, rough ; flowers reddish. In the less 

 dense wooded elevated parts of the Quota mountains, rather rare ; fl. 

 and fr. middle of May 1856. No. 3901. An erect annual herb, 1 to 

 3J ft. high, with nodding capitula and rosy flowers. In moist places at 

 the outskirts of forests about Sange and Bango, abundant ; fl. and fr. 

 July 1855. No. 3902. 



4. L. brevipes 0. & H. in Oliv. Fl. Trop. Afr. iii. p. 327. 



Ambaca. — A robust, dichotomously branched herb, 4 to 4J ft. high, 

 with reddish flowers. In bushy places on the left bank of the Caringa 

 stream ; fl. and fr. June 1855. No. 3905. 



GoLUNGo Alto. — A tall biennial or triennial herb, 4 to 5 ft. high, 

 branched from the base, the whole plant pleasantly aromatic almost 

 like Melissa officinalis L. In moist places along the banks of the river 

 Coango by the lower thickets, not abundant ; fl. not fully developed at 

 the beginning of June 1856 ; fl. Aug. No. 3904. 



HuiLl.A. — A bright-green annual or biennial herb, 3 to 4 ft. high or 

 exceptionally 6 ft. ; flowers purplish. In hilly places among rather tall 

 bushes along the Catumba forests ; fl. April 1860. Used as a medicinal 

 plant by the negroes. No. 3903. 



23. PLUCHEA Oass. in Bull. Soc. Philom., (Feb.) 1817, p. 31 ; 

 Benth. & Hook, f . Gen. PI. ii. p. 290. Qynema Rafin. Fl. Ludov. 

 p. 63 (1817). 



1. P. ovalis DO. Prodr. v. p. 450 (1836) ; 0. & H. in Oliv. Fl. 

 Trop. Afr. iii. p. 328 ; O. Hoffm. in Bol. Soc. Brot. xiii. p. 23. 



Bdmbo. — A melancholy shrub, 3 to 4 ft. high ; branches erect- 

 spreading, downy, winged with the deourreut leaves ; flowers yellow. 

 In sunny rocky places scattered with trees, above Bumbo, in the ascent 

 of the mountains of Serra da Chella, at an elevation of 2500 to 3000 ft. ; 

 fl. and young fr. Oct. 1859. No. 3434. 



2. P. Dioscoridis DC, I.e. ; O. & H., I.e., p. 329. 



Bacoha/ris dioscoridis L. Cent. PI. i. p. 27, n. 80 (1755), cf. 

 Conyza odora? Forsk. Fl. ^gypt. pp. Ixxiii, 148 (1775). 



Ambeiz. — A sufErutescent herb or even shrubby, with several stems, 

 attaining 5 ft. in height, shortly branched towards the apex, remarkably 

 and very agreeably aromatic ; capitula heterogamous, many-flowered ; 

 the florets of the outer rows female, filiform, with truncate or more 

 frequently tridentate ligules ; the central florets few, hermaphrodite ; 

 anthers with acute rather long tails at the base ; achenes cylindrical, 

 sulcate ; pappus uniseriate, rather livid, not scabrous. Heights of 

 Ambriz ; fl. and fr. Nov. 1853. The true " Quitoco " of the negroes. 

 No. 3927. 



ICOLO E Bengo. — A shrub of 4 to 6 ft., rarely higher, branched from 

 the base ; branches and branchlets patent ; leaves rather limp, aromatic; 

 flowers violet-rosy ; styles of the central florets thick, rather bristly, 

 their branches often cohering. In bushy places flooded in summer by 

 the river Bengo, from Prata as far as Tandambondo, abundant ; fl. and 

 fr. Sept. 1857. It appears that the Quitoco occurring in the coast 

 region is a different plant. No. 3926. 



LoANDA. — Calumbo ; fl. and fr. April 1858. Called " Quitoco 

 pequeno," that is, small Quitoco ; believed to be the plant used there 



